Locomotive



Sept 29, 1925.

L. G. TAND"! LOCOMOTIVE Filed May 18, 1923 I5 Sheets-Sheet iNVE/VTOR ATTOR NEYH Lei m fiew ge ZZZ/263v.

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i... G. TANDY LOCOMOTIVE Filed May 18, 1923 3 Sheets-Sheet I IN VEN 1 UL (214/45 Geo/ a YZzndy. BY

- TTNEYJ' 5... G. TANDY Sept. 29, R925.

LOCOMOTIVE Filed May 18, 1923 3 Sheets-Sheet INVENTOR Lama; GeorgeTazugy. BY

A TORNEYS I Toall whom it magi comm:

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Be it known that I,-Lnw1s Gnonon TANDY, a citizen of the United States,residing at New York in the countyof New York and or State of Ilew'York;have invented certain new and useful Improvements in Locomotives,"ofwhich the tion; I .This invention relates to locomotives and railwayvehicles and has special "reference to weight-transmitting bearerdevices, the

' invention bein particularly useful in conneetion with ocomotives havina main -f rame primarily su 'po the ocomotive' 1| boiler, andasupplbmgiifi frame, articulated to-and extendin rearwardly of. the t heboiler or fire box and adapted to transmit pulling and bufilng One ofthe primary objects of my invention is to provide an arrangement fortrans mitting weight which permits relative movementof the articulatedframe with respect to the fire box' end .of the boiler durin 2o curving,offering resistance to'such latera motion for. centering purposes, andfor providing lateral stability to prevent vibrating, and compensatingfor the difference in the longitudinal expansion of the boiler withrespect to the articulated frame.

More specificall my invention contemlates a combined. earer ahfd lateralmgtioxi evice, making provision or ongitu ina expansion ott e boiler. Inaddition, my invention has to do with certain novel features and detailsof con- ,structiqn hereinafter more fully pointed out.

The tfore oing together with such other objectsias may hereinafterappear, or are incident to my invention, I'obtain by means of aconstruction which I have illustrated in preferred form in theaccompanying drawings, wherein:

Fig.1 1s a diagrammatic side elevation of a locomotive illustrating theapplication of m improvements; 2 is a fragmentary rear end elevation offig. 1, drawn on an enlarged scale to more clearly illustrate the parts;Fig. 3 is a horizontal section through a ollowing is a specifica--detail of'my improvements drawn on an enlarged scale, the section beingtaken on" the line -3 -3 of Fig. 4; and a Fig. 4 is an end elevation ofFig. 3. I Referrin now tothe drawings, and par- 65 ticularly F1g. 1, thereference letter A desi nates the boiler of the locomotive, suc boilerhaving the usual fire box 7 and cab 8 it bein understood for the pur seeof this spec' cation that the'term boil generally includes thesuperstructure of a locomotive. At the front end, the boiler is rigidlyattached'to the usual cylinder or saddle castings 9, the cylinder andsaddle castings. inturnbeing secured to the main frame 10 carrying thedrivers 11. The. boiler, at spacedintervals, supported on the main frameby means of the expansion bearers 12 which rmit the boiler to expandlongitudinally re ative-to the main frame. .70 The forward end of thefire box 7 is similarly supported by an expansion bearer 13. In theparticular locomotive shown, the main frame terminates, at the rear, ata. point approximately in the plane of the juncture '16 between theboilerproper and the fire box, and articulated to this main frame andextending rearwardly thereof is a su plemental frame 14 which extendsbeneat the.

- fire box 7 and isprovided with two. axles,

15 and 16 having wheels, 17 and 18. The

side members of. the supplemental frame, as will be clear on inspectionof Fig 2, are in a plane outside the plane of the wheels 17 and 18, andat the rear, the supplemental frame is provided. witha foot plate 19 fordraft connection with the tender, not shown. It is to be understood thatmy invention, while particularly useful in connection with this form ofsupplemental articulated frame, 00 may be useful in connection withother forms of trailing frames.

Attention is now directed to the bearer device for transmitting weightto the articulated frame. The bearer includes what may 9 be termed amain -member B extending transversely of the fire box and the supiemental frame and having at its ends ousing portions'20,'flanged, asat 21, for at-- tachment to an adjacent part of he fire box,

- such for example, as to the castings 22 which in turn are secured tothe mud ring 23 of the fire box. The housing portions are boxlike incharacter, open at the bottom. With- .in each housing is a'box-likemember 24 in place. By virtue of this arrangement there is a floatingrelation between the main memberof the bearer and the boxes. One of thepurposes of this construction is that, as expansion of the boiler takesplace when the locomotiveis fired up, the main member of the bearer isfree to move toward the rear.

The rollers or rockers 25 are tangent tothe circle described by thearticulated frame when it swings laterally about its [pivot point 28 inthe main frame, asa center. These rockers are designed so as to offerresistance to lateral motion during curving and they .rest upon theupper faces of the side members of the articulated frame, as

will be clear on inspection of Fig. 2.

The weight carried by the art-iculated\ frame is transmitted from themain member of the bearer to the boxes 24 by means of the links or keys29, the ends of which are rounded and seated in the socket-like seats 30and 31 respectively formed on the housings and the boxes 24.

It will be observed that when lateral or swinging motion of thearticulated frame takes place, the rolling movement of the rockersresults in a displacement of the boxes 24 longitudinally of thelocomotive by the difference between the straight line tangent and are.This displacement must occur freely, that is, without undue friction,and the link construction permits the boxes to adjust their positionreadily as lateral motion takes place. Thus, during curving, the boxesfloat with respect to' the main memberjandon expansion of the boiler,the main member is free to float or shift with respect to thehoxes.

The links will not fall off for, although the sockets or seats 31are'opcn at one side,

and that portion of the boiler supported thereby permitting relativelateral movement of the articulated frame and compensatin forexpansionof the boiler longitudinal y therebf.

2.In a locomotive, the combination of a main frame, a boiler rigidlysupported toward one end on the frame, expansion bearers for the boiler,a frame articulated to the main frame and carrying part of the weight ofthe boiler, and expansion bearer means between such articulated frameand the boiler.

'3. In a locomotive, the combination'of a.

main frame, a boiler rigidly supported toward one end on the frame,expansion bearers' for the boiler, a frame articulated to the main frameand carrying part of the weight of the boiler, and expansion bearer theboiler, said articulated frame having lateral movement relative to theboiler.

4. In a locomotive, the combination of. a

means between such articulated frame and main frame, a boiler primarilysupported frame. and sup'portipg'part of the wei ht of the boiler, and acombined expansionarer and lateral motion resistingIdevioe'between theboiler'and the articulatedframe.

5. A weight transmittingbearer device for railway vehiclesr'includingahousingf a box therein having relative movement 0 thereby, a framearticulated to the main' translation with respect thereto, and latera'lmotion re'sisting'means iirriedby the- 6. A weight transmitting bearer.device for railway vehicles in'cluding'a housing, a box therein' havingrelative movement "of translation with respect thereto, and a lateralmotion resisting rocker carried by the box.

7-. A weight transmitting bearerdevice for railway vehicles including ahousing, a box therein' having relative movement-of translation withrespect thereto, and a centering rocker carried by the-box.

8. A weight transmitting bearer device for railway vehicles including ahousing, and a lateral motion permitting means carried thereby withcapacity for mdvementin a direction generally transverse the line oflateral movement.

9. A weight transmitting bearer device for railway vehicles including ahousing, a box therein having relative movement of translation withrespect thereto, and a weight transmitting liiik between housing andbox.

10. A weight transmitting bearer device for railway vehicles including ahousing, a'

box therein having relative movement of translation with respectthercto,and a weight transmitting link between housing and box, together withlateral motion means carried by the box.

11. A weight transmitting bearer device for railway vehicles includingtwo members,

one of which is floating relative to the other, rocker to move in asubstantially straight and lateral motion resisting means carried lineas the truck swings. v by one of the members. i 14. A Weighttransmitting bearer device 12. A weight transmitting bearer device forrailway vehicles including a housing 15 e for railway vehicles includinga main memmeans and a lateral motion -means carried her, a, pair ofspaced members having that thereby, one of said means having capacitying relation therewith, and a lateral motion for movement in a.direction'generally trans resisting means on each floating member. versethe line of lateral movement.

13. In 2:, centering device for a radial or testimony whereof, I havehereunto 0 w swingin truck, a. rocker set tangent to the mgned y n m areof tnetruck, and means permitting the L GEORGE a

